Finding the Fourth Proportional to 467,356,840.92, 644,912,263.53 and 258,460,986.96
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Solution
The fourth proportional to 467,356,840.92, 644,912,263.53 and 258,460,986.96 is: 356,653,943.07
Step by Step Solution
- Step 1: Write the proportion equation
467,356,840.92 : 644,912,263.53 = 258,460,986.96 : x - Step 2: Convert to fraction form
467,356,840.92/644,912,263.53 = 258,460,986.96/x - Step 3: Cross multiply
467,356,840.92x = 644,912,263.53 × 258,460,986.96 - Step 4: Simplify right side
467,356,840.92x = 166,684,660,134,571,424 - Step 5: Solve for x
x = 166,684,660,134,571,424/467,356,840.92 - Step 6: Final answer
x = 356,653,943.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.